Recent content by Cglez1280

I'm sorry that's what I'm trying to say, I just need a little bit of help on this problem

Homework Statement A box of mass 6.2 kg slides 4.8 m down a ramp that is inclined 38 degrees to the horizontal. What is the velocity of the box right before it hits the ground? Mass=6.2 Height=dsintheta? V=is what needs to be found theta=38 Homework Equations GPE=mgh=mgdsin(theta) KE=1/2mv^2...

I'm sorry. I'm just new to this website and I'm looking for help. But, what's a better way of showing my free body diagram?

Don't mind the things above my drawing

Yes I already drew it.

Homework Statement Two identical balls (B and C) with a mass of .5 g are suspended from two strings as shown above. The balls carry equal charges +10nC each and are separated by a distance of 4 cm. A. Draw the free-body diagram and show all forces applied to ball C. B. Find the tension force in...

Homework Statement A positive charge Q1 = 7.4 μC is located at a point X1 = -2 m, a negative charge Q2 = -9.7 μC is located at a point X2 = 3 m and a positive charge Q3 = 2.1 μC is located at a point X3 = 9 m. Draw free body diagrams for the electric force acting on Q1, Q2 and Q3. Find the...

So basically my answer for Q1 will be positive and Q2 and Q3 will be negative? Is there a certain equation I should I use to be able to get my answer?

Oh my god just when I get magnitude the last part completely lost me.

Hmm ok I see. But would the negative sign be dropped in my work because that seems to be an issue also. Another question is what would I do when I'm asked for the magnitude and direction of the net electric force on charge Q1?

So the picture shows my work and the answer I'm supposed to get is 2.58*10^-2. I'm not sure what I did wrong

Ok I've been looking at Coloumb's law and it says k would be 9*10^9 N, is that right in this case because every time I do the math I get some other number from the answer I'm supposed to get.

Ok so how would I do the distance. Since X1 is at -2m and X2 is at 3m would it be 5? Sorry for the dumb questions I'm just trying to make sure I can do the next few parts without help

Ok sorry to add that I already drew the free body diagrams but after that I'm confused.

Homework Statement A positive charge Q1=7.4uC is located at a point X1=-2 m, a negative charge Q2=-9.7uC is located at a point X2=3m and a positive Q3=2.1uC is located at a point X3=9 A. Draw a free body diagram for the electric force acting on Q1, Q2, and Q3. B. Find the magnitude of the force...